Fluorescent Brightener 140 Optical Brightening Agent Swn Oba for Wool

• CAS No.: 91-44-1
• Formula: C14h17no2
• EINECS: 202-068-9
• Environmental Protection: Yes
• Color: White
• Kind: Fluorescernt Brighening Agent
• Model NO.: SWN
• Appearance: Powder
• Application: Whitening Agent for Acrylic
• H.S.Code: 32042000
• Other Name: Mainly Be Used as Brightener of H-PVC,S-PVC,Wool,
• Transport Package: 25kgs Drum
• Specification: 99%
• Trademark: AFINE
• Origin: China
• HS Code: 3204200000

Product Description

Optical Brightening Agent SWN

Main Chemical Composition: Coumarin Derivatives
Specification:  Appearance: Off-white powder
              Content: ≥99%
              Melting Point: 69.5~71.0ºC
              Moisture: ≤0.5%
C.I.Number: 140
Property: 1.multipurpose brightener with excellent whiteness, soluble in ethanol but insoluble in water.
         2.having properties of good solubility and compatibility.

Application: mainly be used as brightener of H-PVC,S-PVC,wool, natural silk, polyamide fiber and acrylic fiber. Also can be used for detergent. This product is a common laser dyestuff.    
Process:
1.H-PVC:0.03-0.1%     S-PVC:0.02-0.08@
2.Soluble with ethanol before adding.
wool: 0.05-0.35%            polyamide fiber: 0.05-0.3%
natural silk: 0.05-0.4%        acrylic fiber: 0.05-0.8%
3.detergent:0.001-0.005%

It needs to be declared that the above data is based on our present knowledge and experience; owing to too many affecting factors, these data cannot be free from their check and test when processing and using the product.
 

 

Items	Specifications	Results
Appearance	White Crystalline Powder	White Crystalline Powder
Purity	>=99%	99.3%
Melting point	69 - 73ºC	71ºC
Moisture	<=0.5%	0.39%